PHILADELPHIA — Philadelphia anti-war activists who broke into an FBI office and stole thousands of documents in 1971 are revealing their identities and talking publicly for the first time about their bold protest.

The crime was never solved. A lawyer says they don't risk prosecution now because of the statute of limitations.

They spoke with media including The Philadelphia Inquirer as Betty Medsger's book about them, "The Burglary: The Discovery of J. Edgar Hoover's Secret FBI," comes out Tuesday.

The group included college professors, a day-care director and a cab driver.

They cased the FBI office in the suburban town of Media for months before picking a lock to get in. They filled suitcases full of government files that showed the agency targeting protesters, and they shared the documents with newspapers.